Place an oven rack in the center of the oven. Preheat the oven to 400 degrees F. Butter a 9 by 13-inch glass baking dish.
05Spread 1 cup marinara sauce in the bottom of the prepared baking dish. Lay 4 noodles flat on a dry work surface. Spread 1/4 to 1/3 cup of the filling mixture evenly along each noodle. Roll up and place seam-side down in the baking dish. Repeat with the remaining noodles and filling to make 12 lasagna rolls. Spoon the remaining marinara sauce on top and sprinkle with Parmesan. Drizzle with olive oil, and bake until the lasagna rolls are heated through and the cheese is beginning to brown, about 25 minutes.